Geological Survey (U.S.)Sanborn Mapping.Provide FEMA compliant elevation, topography and contour map of Winnebago County, Illinois. Provide Bare Earth DEM (vegetation removal) of Winnebago County, Illinois.Shapefile1f56331d-40cc-4186-a811-9f48776a6e22engIllinois Geospatial Data ClearinghousePublicHeight Modernization (ILHMP) LiDAR Data [Winnebago County, Illinois] (2007)DatasetsIllinoisIllinois--Winnebago County2007